The Bargain and the Crossing · Chapter 14

The Border Metropolis: Iskandar, the JS-SEZ, and Forest City

A note on this draft. This chapter is built entirely from a cluster of the corpus's own working documents on southern Johor — the Iskandar Malaysia corridor record (MY-E-JHR-01), the Johor–Singapore Special Economic Zone agreement architecture (MY-E-JHR-02), the Forest City case file (MY-E-JHR-03), the Rapid Transit System Link project history (MY-E-JHR-05), the post-2025 integration anchor on data centres and talent flow (MY-E-JHR-06), the federal-bilateral negotiation record (MY-G-02), and the Johor power-base reading of Muhyiddin Yassin's federal career (MY-H-JHR-FED-03), supported by the biographies of three Johor Menteri Besar through whom the corridor's state politics ran (MY-H-JHR-MB-02, MY-H-JHR-MB-03, MY-H-JHR-MB-04). Every one of those sources carries a [DRAFT] status, and several are among the most heavily hedged in the entire Malaysia archive. They chronicle events of 2024, 2025, and 2026 that were still unfolding as they were written, and they say so. The single most important caution concerns numbers. Iskandar Malaysia's investment-realisation figures are contested at the source — the headline committed-investment total, the realised total, the implied realisation rate, the data-centre pipeline, Forest City's occupancy — and the corpus tags them so. This chapter inherits every one of those hedges: each figure below appears as the source reports it, attributed and bounded, never as settled fact. Where the corpus could not confirm a number, this chapter leaves the gap rather than filling it. The chapter is also, by the corpus's own framing, contested at its core. The ownership of the JS-SEZ is claimed by three political constituencies at once — the federal unity government, the Johor state-and-royal establishment, and the Perikatan Nasional opposition (joined by environmental civil society) — and Forest City's record is read in flatly opposed ways by its developer and its critics. This chapter presents each account by name and does not adjudicate between them.

A Bridge Built in Both Directions

On a morning in January 2025, above the narrow stretch of water that the Malaysians call the Straits of Johor, two halves of an elevated railway viaduct met in the middle — the connection milestone, as the corpus records it, of the Rapid Transit System Link, the four-kilometre cross-strait shuttle being built from Bukit Chagar in central Johor Bahru to Woodlands North on Singapore's northern edge. It was a small piece of engineering by the standards of the megaprojects this chapter describes, carrying trains that run about five minutes end to end. But the symbolism outran the structure. For a century the only fixed link between Johor and Singapore had been the 1923 Causeway, by the 2020s carrying a daily flood of crossings the corpus puts in the order of 440,000 combined — so large, against infrastructure set in 1924, that the border had become one of the most congested land frontiers in the world. That the new viaduct's two halves were raised from opposite shores, by two governments, to meet in the middle was as good an image as the corpus offers for what southern Johor had become: a single economic place, governed by two sovereigns, trying to act as one.

That is the subject of this chapter — the border metropolis. The phrase is the corpus's own, carrying a specific claim from the integration anchor: that Johor Bahru, Iskandar Puteri, Tuas, and Jurong have been coalescing into one urban-economic unit asymmetrically governed across an international boundary, comparable, in the literature the corpus cites, to Tijuana and San Diego or Shenzhen and Hong Kong. Reading that claim means holding two things at once. The first is ambition on a scale Malaysia has attempted nowhere else: the largest sub-national development corridor in its history, the deepest bilateral economic architecture with Singapore since the federation formed in 1963, a data-centre boom the corpus calls the largest such inflection in Southeast Asia, and a rail link sprinting to a 2027 opening. The second is the contestation running through every part of it — over whether the investment figures are real, over who owns the project politically, over what a four-island Chinese-built city off the Tuas coast says about the limits of foreign capital, and over who bears the costs and who captures the value.

The place to begin is not 2025 but 2006, because nothing signed in January 2025 made sense without the corridor built, unevenly, over the two decades before — and that corridor cannot be understood without the men who governed Johor while it rose, a succession of Menteri Besar (chief ministers of the state), and a royal house whose endorsement, the corpus argues, proved more durable across federal upheaval than any government's policy. The federation's most consequential subnational project is also the place where federal, state, and royal authority have each, by turns, staked a claim.

Iskandar Malaysia: Two Uneven Decades

On 4 November 2006, in Johor Bahru, Deputy Prime Minister Najib Razak launched what was then called the Iskandar Development Region — renamed Iskandar Malaysia in 2008 — before Prime Minister Abdullah Badawi and Sultan Iskandar of Johor, the reigning sovereign after whom it was named, a deliberate honour signalling royal endorsement no federal government could lightly withdraw. The corridor was vast — 2,217 square kilometres across five districts of southern Johor, roughly three times Singapore's land area — structured into five zones: Johor Bahru city centre as Causeway gateway, Nusajaya (renamed Iskandar Puteri in 2014) as administrative capital, Pengerang as petroleum-petrochemical hub, Pasir Gudang as heavy industry, and Tanjung Pelepas as port-and-logistics anchor. The 2007 Iskandar Regional Development Authority Act created IRDA to coordinate it, with a feature the corpus singles out as the corridor's defining innovation: the board was co-chaired by the Prime Minister of Malaysia and the Menteri Besar of Johor, binding federal and state authority into one structure. What the launch was not mattered as much, the corpus stresses: not a federal grant but a federal corridor with its own authority; not a bilateral treaty but a Malaysian-owned framework conceived to capture the relocation the city-state's land constraints were generating; and not primarily a Bumiputera-equity instrument but a corridor built to draw Singaporean, Japanese, Korean, and international capital rather than to redistribute it.

The corridor's first two decades were, in the corpus's word, uneven — and so were its numbers, which must be handled with care. The headline figure is the cumulative committed investment IRDA reported reaching approximately RM 423.4 billion by end-2024, but the corpus immediately flags it for verification against IRDA's own statistics and pairs it with a realised total of around RM 250 billion — an implied realisation rate near 59 per cent it calls "IRDA's most contested headline figure." Both should be read as the corpus reports them: headline claims under explicit caution, not audited fact. The phasing tells the honest story: a first phase from 2006 launched into the 2008 financial crisis, realisation slow; a second, through the mid-2010s, brought a property boom around Iskandar Puteri driven heavily by mainland-Chinese developers — Country Garden's Danga Bay, R&F's Princess Cove, Greenland's Tebrau project, and, largest and most contested, Forest City; a third saw post-2014 cooling, the 2018 reform government's scrutiny, and the pandemic; a fourth, from the early 2020s, brought recovery, the data-centre boom, and the JS-SEZ. The realisation rate drew two lines of critique the corpus keeps separate: a methodological one, associated with the analyst Khor Yu Leng and echoed in ISEAS papers by Francis Hutchinson, holding that committed-investment figures aggregate signed letters and memoranda rather than drawn-down capital and so overstate the real footprint; and a geographic one, louder in the international press — Bloomberg, the Financial Times, the Guardian — turning on the under-occupied estates of Iskandar Puteri, the "ghost city" framing that attached from 2018. IRDA and federal officials contested it, arguing a 25-year township naturally sees occupancy lag infrastructure and that the post-2022 recovery was drawing buyers back. The corpus places the record between the readings and lets the late-2020s supply the better evidence.

The Chief Ministers and the Crown

The corridor rose under a succession of Johor chief ministers whose tenures, read together, form the state-political spine of the story; the corpus's biographies of three supply the through-line. Abdul Ghani Othman governed Johor for eighteen years, from 1995 to 2013 — the longest tenure of any Menteri Besar in the post-independence federation — and it was on his watch, in November 2006, that the corridor launched, with Ghani delivering the state government's formal acceptance alongside Najib; under him committed investment reached, by IRDA reporting the corpus again flags for verification, around RM 128 billion by end-2013. His defenders cast him as the technocrat who built Iskandar's state-level foundation; his critics, in the Johor opposition and later academic analysis, as the state partner of a Najib-era investment promotion that seeded over-leveraged property development and the Chinese-buyer dependency Forest City would embody — the corpus documenting both and adjudicating neither. His successor, Mohamed Khaled Nordin, governed from 2013 to 2018 — the last Barisan Nasional chief minister before the reform breakthrough — presiding over the most consequential build-out years: committed investment rising, by figures the corpus marks for verification, from roughly RM 128 billion to about RM 305 billion at his exit; the 2014 launch of Forest City's reclamation; the Pengerang petroleum complex including the Petronas–Aramco refinery joint venture; and the first, abortive Kuala Lumpur–Singapore High-Speed Rail. His tenure ended in the 2018 collapse, when Pakatan Harapan won Johor at state level for the first time since independence, and he returned to federal office as Anwar Ibrahim's Defence Minister in December 2023. The third figure, Muhyiddin Yassin, had governed Johor far earlier, from 1986 to 1995, and the corpus reads his federal career through that base — the Pagoh constituency, the Muar hinterland, the state UMNO machinery he consolidated. His relevance to the corridor is not as builder but as the leader who, as Prime Minister in 2020, revived the cross-border rail link the previous government had suspended; and his trajectory shows the volatility beneath Johor's stability, as his party Bersatu, having helped deliver 2018, collapsed to zero state seats in the March 2022 Johor election, returning Barisan Nasional to power under a new chief minister, Onn Hafiz Ghazi — the state-side counterparty to the JS-SEZ about to be negotiated.

Across all these tenures and transitions, one continuity held that the corpus treats as decisive: the endorsement of the Johor royal house. Sultan Ibrahim Iskandar, who acceded in 2010 and whose namesake father the corridor had honoured, became its principal royal advocate, framing cross-border integration as a Bangsa Johor priority — the distinctive Johor identity around which the house has built an unusually public political voice, reinforced by his son, the Tunku Mahkota Johor (Crown Prince) Tunku Ismail Idris. The corpus's argument is precise: the Bangsa Johor framing's structural function was to provide political continuity across six federal governments — a continuity, it says, no other Malaysian corridor has matched. The royal house was the one institution whose support did not turn over when Putrajaya did, a fact that would shape the contest over who could claim the JS-SEZ as their own.

The Deepest Architecture Since 1963

On 7 January 2025, in Putrajaya, the Johor–Singapore Special Economic Zone agreement was signed by Tengku Zafrul Tengku Abdul Aziz, Malaysia's Minister of Investment, Trade and Industry, and Gan Kim Yong, Singapore's Deputy Prime Minister and Minister for Trade and Industry, witnessed by Prime Minister Anwar Ibrahim and Prime Minister Lawrence Wong. The corpus's assessment is unequivocal and deliberate: the JS-SEZ is the most consequential single bilateral economic instrument between Malaysia and Singapore since the formation of Malaysia in 1963 and the 1965 separation — surpassing, in geographic scope, sectoral breadth, financial-services depth, and worker-mobility provision, anything before it, including the 1962 Water Agreement and the joint committees on Iskandar. It followed a memorandum of understanding a year earlier, in January 2024, and an inflection-point leaders' retreat in October 2023.

What the agreement does, in the corpus's framing, is extend rather than replace the Iskandar framework: a perimeter of approximately 3,571 square kilometres covering the entire Iskandar footprint plus extensions, still administered through IRDA, with a layer of explicitly bilateral policy Iskandar never contained — designated sectors (advanced manufacturing including semiconductors, the digital economy and data centres, financial services, the green economy, healthcare and education); an incentive regime the corpus calls among the most generous of any Malaysian sub-national zone, including a 5 per cent corporate-tax rate on qualifying income for fifteen years against a standard 24 per cent; financial-services passporting coordinated between Bank Negara Malaysia and the Monetary Authority of Singapore; and streamlined worker mobility, with a Joint Implementation Committee of a dozen working groups as the operational scaffolding. The corpus's caution is explicit: the agreement, it says, "does not build anything"; whether it delivers depends on the operational sprints that follow, and the first-year milestones it lists are tagged for verification.

But the JS-SEZ's deeper story is not its architecture; it is its ownership. The corpus is insistent that the project is claimed by three distinct political constituencies, and that an honest account must present each by name rather than collapse them into one voice. The first is the federal unity government's account — in the corpus's vocabulary, the Madani modernisation reading. On it, the JS-SEZ is the largest sub-national foreign-investment inflection in Malaysia's history, the instrument that finally operationalises Iskandar's 2006 promise and binds Singapore as an anchor partner, and proof that a unity government of historically opposed coalitions could deliver what no single-party government had. Anwar's positioning was deliberate, the corpus notes: he framed the zone as "a Johor opportunity for all Malaysians" rather than a Bangsa Johor benefit, precisely because the unity government needed its Sabah and Sarawak partners to back federal investment concentrated in Johor. The federal claim ran through Tengku Zafrul at trade, Amir Hamzah Azizan at finance, and the Prime Minister's office.

The second is the Johor state-and-royal account, on which the JS-SEZ is a Bangsa Johor achievement, the fruit of the state's long ambition and its royal house's sustained advocacy. The corpus records a coincidence of timing it treats as significant: Sultan Ibrahim Iskandar acceded to the federal throne as the 17th Yang di-Pertuan Agong — the King, elected on rotation from among the nine Malay rulers — on 31 January 2024, twenty days after the JS-SEZ memorandum was signed, stacking federal-royal endorsement atop what had already been state-royal endorsement: the man who had championed the corridor as Sultan of Johor now sat at the federation's constitutional apex as the zone moved to signing. His public commentary, through official channels and his Instagram account, consistently backed both the JS-SEZ and the data-centre build-out as Bangsa Johor uplift, the Crown Prince reinforcing it; and the corpus draws the sharp implication — no future federal government could easily withdraw from the JS-SEZ without implicitly countermanding a commitment made by the sitting King. The state's operational counterparty was the chief minister Onn Hafiz Ghazi, who — and the corpus is clear his role here is drawn from the economic and integration records, not any standalone biography — navigated the federal-state coordination through the Joint Implementation Committee as the Johor-side principal.

The third account is the opposition's, given equal standing. Perikatan Nasional — through its components Bersatu and the Islamist PAS — raised two objections. The first was sovereignty-and-sectoral: that the financial-services passport provisions would advantage non-Muslim and Singapore-linked operators over Malaysian-licensed institutions, the government's emphasis on the Islamic-finance pillar a partial answer at best. The second was constitutional: that the royal endorsement was being used to insulate the agreement from parliamentary scrutiny — wrapping the zone in the King's backing made it harder for the Dewan Rakyat to interrogate. Those objections were addressed at a surface level through the budget process, which required parliamentary approval of the tax provisions and which the opposition's roughly 74 seats could force into debate but not block. Overlapping the PN critique was a civil-society reading — from Sahabat Alam Malaysia, the Consumers Association of Penang, and Johor-based environmental groups — framing the integration as an asymmetric externality transfer: Singapore exports the compute load and the capital, while Johor imports the grid stress, the water draw, and the land-rent inflation, with limited domestic spillover. The corpus sets these three claims side by side and chooses among none. Its point is that the JS-SEZ is the rare project on which federal, state-royal, and opposition forces all have a genuine stake — and that the stake is what makes it contested.

Power, Water, and the Data-Centre Boom

The clearest test of whether the JS-SEZ's ambition was physically deliverable came from an industry the agreement did not create but came to anchor: data centres. The corpus calls the 2024–2025 Johor cluster the largest sub-national digital-infrastructure inflection in Southeast Asia, and is exact about why it landed there. The cause was a Singapore policy: from 2019 the city-state imposed what the trade press called a moratorium — officially a pause pending selective allocation — on new data-centre capacity, after the sector had grown to consume around seven per cent of national electricity. When the AI-training compute boom arrived from late 2022, the demand Singapore could not absorb spilled across the strait to Johor, which offered proximate land, sub-millisecond fibre latency, grid headroom, lower power tariffs, and the JS-SEZ's incentives. The corpus's framing, attributed to ISEAS analysts including Francis Hutchinson and Serina Rahman, is that this was not a competitive victory over Singapore but a complementary settlement: Singapore keeps the high-value headquarters and design functions, Johor hosts the physical compute, the construction labour, and the operating staff. The scale is reported, and the corpus hedges it hard — a consolidated reading of the trade press through end-2025 puts contracted, under-construction, and commissioned capacity somewhere in the range of 1.6 to 2.0 gigawatts of IT-load, the announced pipeline higher, with an explicit warning that the press has conflated IT-load with grid-load and announcements with committed capacity. The operators named span the global and regional industry — AirTrunk and Bridge Data Centres at Sedenak, the Singapore-listed Sea Limited at Iskandar Puteri, Equinix, NTT, the US hyperscalers, and ByteDance through partners — and the implied capital expenditure the corpus puts, with caution, at US$15 to 25 billion across the 2024–2027 cycle, a step-function expansion comparable to the cumulative Pengerang petrochemical investment but compressed into a shorter window.

The binding constraints were power and water, and the corpus treats water as the tighter. Power could be added through construction — the national utility Tenaga Nasional named Johor its highest-growth load centre and planned grid-reinforcement spending the corpus reports at RM 35 to 45 billion across its 2025–2027 regulatory period, the Johor share flagged for verification — anchored on Pengerang and Pasir Gudang gas generation and a renewable pivot. Water was harder, depending on rainfall and the inelastic Sungai Johor catchment — the same catchment that, under the 1962 Water Agreement expiring in 2061, supplies Singapore's daily entitlement. The state operator reported dry-season stress, the federal regulator raised raw-water tariffs, and data-centre cooling drew civil-society fire as the chokepoint exposing the boom's externality structure most clearly. By late 2024 the pace of approvals had become a federal political issue, and in December 2024 Anwar clarified the framework — not a moratorium, the corpus is careful to say despite the opposition's use of the word, but additional screens for water, power, and environmental fit, tilting approvals toward higher-value tenants. The course-correction did not halt the boom; it tried to govern it.

The Sprint to 2027

The railway whose two halves met above the strait carried, in the corpus's reading, a weight out of proportion to its length. Its lineage runs back to a 1990 Johor Bahru–Tanjung Pagar light-rail proposal, raised in the Mahathir and Lee Kuan Yew era, that never advanced past the idea, stranded on an unresolved dispute over Malayan railway land in Singapore. The modern project begins with the bilateral agreement of 19 July 2016, signed by Liow Tiong Lai and Khaw Boon Wan, fixing the route, the single-clearance customs model, and a target opening then set at end-2024 — before it ran into the post-2018 coalition churn this book has traced. The reform government placed the RTS Link, alongside the High-Speed Rail and the East Coast Rail Link, under fiscal-restraint review, and on 5 April 2019 the transport minister Anthony Loke announced a deferral — worded carefully as deferral, not cancellation, to preserve bilateral options. The Sheraton Move of February 2020 then installed Muhyiddin Yassin's administration, and within four months, in the first weeks of the pandemic, his government reached a revised agreement reviving the project; the 30 July 2020 revision, signed by Wee Ka Siong and Ong Ye Kung, restructured the operating company so the Malaysian operator Prasarana held 60 per cent against a Singapore subsidiary's 40 — the principal change. The corpus reads the speed of that revival, at a moment of acute fragility, as the signal that cross-border infrastructure had decoupled from partisan oscillation; a ground-breaking followed in January 2021, and construction proceeded across three federal governments. The deferral and revival admit, the corpus is candid, three legitimate accounts it presents in parallel: a reform-government reading on which the 2016 terms favoured Singapore and the renegotiation extracted genuine improvements; a continuity-and-cosmetic reading, from Singapore-side commentators and some scholars, on which the 60–40 structure changed little, since a four-kilometre shuttle's revenues are modest and the deferral's costs exceeded its gains; and a comparative reading favoured in the academic literature on which neither pause nor revival was exceptional, mid-construction renegotiation being the global norm and only the revival's speed distinctive. The corpus endorses none.

On what the railway delivers it is precise, and equally precise on what it does not. The single-clearance model, drawn from the Eurostar precedent rather than the constitutionally fraught Hong Kong–Shenzhen one, lets a passenger clear both countries' immigration at the departure station, so the journey runs about five minutes; integrated with Singapore's MRT at Woodlands North, it puts the Singapore business district within roughly 45 minutes of central Johor Bahru. For the 100,000 to 150,000 Malaysians the corpus estimates commute daily into Singapore — facing Causeway congestion of one to three hours at peak — that transforms the commute economics. But the corpus refuses the larger claim: at 10,000 passengers per hour per direction, the link is roughly one-sixteenth of the Causeway's daily flow and will not end its congestion, much of which is freight and private vehicles. Its significance is time-cost reduction for the commuter labour market and its role as the institutional spine of the JS-SEZ's cross-border workforce. Service entry was targeted, and reaffirmed by both transport ministers, for end-2026 or 1 January 2027 — dates the corpus, like all its live-history dates, carries as reported.

Forest City: The Contested Island

If the railway is the corridor's most hopeful image, Forest City is its most contested. The corpus calls it the most contested foreign-direct-investment megaproject in modern Malaysian political economy, and the largest single Chinese property project in the country's history by announced commitment — a four-island reclamation off Tanjung Kupang in southwestern Johor, facing Tuas across the strait, launched in February 2014. Its structure encodes the federal-state-royal politics this chapter has traced: a joint venture between Country Garden Pacificview, the Malaysian arm of the Hong Kong-listed mainland-Chinese developer Country Garden Holdings, at 60 per cent, and a Johor-aligned vehicle, Esplanade Danga 88, at 40 — whose beneficial ownership the corpus reports as including the Johor state investment arm and interests linked to the royal house, while flagging the precise equity split for verification and treating it throughout as variably reported, not settled. The master plan projected 700,000 residents and around US$100 billion of investment by 2035. By end-2024 the corpus reports occupancy in a contested band of somewhere between 9,000 and 15,000 — varying by source and definition — a small fraction of the projection.

The corpus presents Forest City's record from competing positions and attributes each rather than synthesising. On the environmental and displacement axis, reclamation began in mid-2014 before a comprehensive environmental impact assessment had been approved; in June 2014 the federal Department of Environment issued a stop-work order, and a revised assessment was approved in early 2015 with mitigation conditions. The Tanjung Kupang coast held one of peninsular Malaysia's largest seagrass meadows, with documented dugong and turtle populations, and fishing communities the project displaced. On one side, the corpus records, civil-society organisations — the Pontian fishermen's association, Sahabat Alam Malaysia, Greenpeace Malaysia — and the ISEAS researcher Serina Rahman documented destruction of a large share of historical fishing grounds and contested the adequacy of compensation; on the other, Country Garden Pacificview and IRDA emphasised the mitigation, the conservation-area designation, the compensation disbursed, and the formal compliance framework. The corpus's own position holds the middle ground: the seagrass destruction is empirically established and substantial, compensation was administered but its adequacy against long-term livelihood loss is genuinely contested, and the long-run ecological consequences remain partly uncertain.

The second axis is economic — the dependence on a single national buyer-source. Forest City's marketing was built for mainland-Chinese buyers through sales offices across more than thirty Chinese cities, and that dependency proved fragile. A first shock came in 2017, when China's tightening of capital controls cut the outbound flow that financed purchases; a second in August 2018, when the returning Prime Minister Mahathir Mohamad told reporters the city "cannot be sold to foreigners" and that visas would not be granted for foreigners to live there — read, the corpus says, as a direct repudiation of the business model, crystallising the "ghost city" narrative the same week Bloomberg published its feature of that name. The pandemic then closed the buyer pipeline, and from late 2021 the parent Country Garden Holdings entered the broader Chinese property crisis, missing offshore bond payments in 2023 and entering restructuring — inverting the dependency, leaving the project reliant on a distressed parent. Here too the corpus keeps two framings distinct: the international-media reading of a failed speculative megaproject, accurate for those years' occupancy, and the developer-and-official counter-reading of a long-build project on a 2035 horizon buffeted by exogenous shocks. Its verdict is that both capture real elements, that the project has materially under-performed, and that its remediation is credible but unproven.

That remediation is the third axis. The Anwar government's principal intervention came in August 2023, designating Forest City a Special Financial Zone — a deliberate pivot from failed luxury residential toward financial services, with family-office incentives, a flat 15 per cent income-tax rate for designated knowledge workers, and streamlined regulatory engagement — folded into the JS-SEZ at the January 2025 signing, gaining bilateral-Singapore endorsement and central-bank passporting. The corpus reports first-year tenant uptake as modest, flags the numbers for verification, and is plain that success is unproven: the 700,000-resident, US$100 billion vision has, in its words, been structurally invalidated, and whether Forest City stabilises as a niche financial-services hub on a partly failed residential base or becomes a permanent under-realisation is a question the late-2020s would answer. One further framing the corpus records and qualifies: a strand of strategic commentary reading Forest City as Chinese influence projection near the western entrance to the Singapore Strait — which, it judges, overstates the coordination, the project being a private-developer venture that failed on commercial grounds and its rescue a Malaysian-government economic intervention, not a Chinese strategic instrument.

The Place Where the Federation Is Negotiated

Set the pieces together and the border metropolis comes into view as the corpus frames it: a corridor two decades in the building, its investment figures contested at the source; a bilateral architecture the corpus calls the deepest since 1963, claimed at once by a federal government, a state-and-royal establishment, and an opposition; a data-centre boom straining the power and water the same catchment owes to Singapore; a railway sprinting toward a crossing built for a workforce of a hundred thousand and more; and an artificial island that became the cautionary tale of foreign capital's limits. What holds it together is the claim with which the chapter began — that this is the federation's most consequential subnational project precisely because it is the place where federal, state, and royal authority all stake a claim, and where the contest is conducted not in the abstract but over concrete things: tax rates, customs lanes, fishing grounds, water tariffs, and who gets to call a Singapore-facing megaproject a national achievement. That contest is not only Johor's. The corridor's logic runs across an international boundary, and every strand — the water that expires in 2061, the Causeway laid down in 1923, the workforce that crosses each dawn, the passport that joins two central banks — belongs as much to the Malaysia–Singapore relationship as to Johor's internal politics. To understand the border metropolis fully, one has to step back to the bilateral that contains it — the permanent, never-quite-settled negotiation between the federation and the city-state it once contained and then released. That is the subject of the chapter that follows.